👉 Railway fluid, also known as brake fluid or coolant fluid, is a specialized liquid used in railway systems to lubricate moving parts and dissipate heat generated by braking and friction. It plays a crucial role in ensuring the smooth operation and longevity of railway components, particularly brakes. Typically, it is a mixture of mineral oil or glycol-based fluids with additives to enhance its performance under extreme temperatures and pressures. The fluid circulates through brake systems, absorbing heat from brake pads and discs, and then transferring it away to prevent overheating and potential damage. This process not only maintains optimal braking efficiency but also protects the integrity of the railway infrastructure, contributing to safer and more reliable rail transport.